Ruko ULTIMATECUT stepped drill bits, HSS-Co 5, FLOWSTEP® tip, Ø 5.0–12.0 mm

5 - 12 millimetres
4Ratings
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Drill diameter8

Product details

Efficiency and precision – designed for maximum performance and durability in machining materials up to 4 mm thick. In a single operation, sheets are pre-drilled, reamed, and deburred. Equipped with the innovative FLOWSTEP® tip, this tool allows for quick and secure drilling. With a 5% cobalt content for increased hardness and wear resistance, it is ideal for processing robust materials such as stainless steel and alloyed steels.

Featuring a 3-flat shank that prevents slipping in the drill chuck and ensures consistently optimal power transmission during the work process.

Key specifications

Metal type
Cobalt, High-performance high-speed steel, Stainless steel
Material application
Fabric, Stainless steel
Drill diameter
5 - 12 millimetres

General information

Item number
66965405
Manufacturer
Ruko
Category
Drill bit insert
Manufacturer No.
101650-9E
Release date
4.2.2026

Material

Metal type
Cobalt, High-performance high-speed steel, Stainless steel
Material group
Metal
Material
HSS-Co 5

Drill bit properties

Drill Type
Step drill
Material application
Fabric, Stainless steel
Suitable for
Stainless steel

Voluntary climate contribution

CO₂ emissions
1.93 kg
Climate contribution
CHF 0.11

Product dimensions

Drill diameter
5 - 12 millimetres

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Drill bit insert» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 1.Metabo
    0 %
  • 1.Neriox
    0 %
  • 1.Ruko
    0 %
  • 1.Toolcraft
    0 %
  • 1.vidaXL
    0 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Ruko
    Not enough data
  • 1.Bosch Professional Zubehör
    0 days
  • 1.DeWalt
    0 days
  • Alpen
    Not enough data
  • Benson
    Not enough data

Return rate

How often is a product of this brand in the «Drill bit insert» category returned?

Source: Digitec Galaxus
  • 15.Festool
    0.8 %
  • 15.Proxxon
    0.8 %
  • 15.Ruko
    0.8 %
  • 15.Toolcraft
    0.8 %
  • 20.Hardtwerk
    0.9 %
Source: Digitec Galaxus